From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
If the sub-device did not report any tvnorms, then disable the STD
ioctls.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/platform/soc_camera/soc_camera.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 4b8c024..c8549bf 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -1277,6 +1277,8 @@ static int soc_camera_probe_finish(struct soc_camera_device *icd)
sd->grp_id = soc_camera_grp_id(icd);
v4l2_set_subdev_hostdata(sd, icd);
+ v4l2_subdev_call(sd, video, g_tvnorms, &icd->vdev->tvnorms);
+
ret = v4l2_ctrl_add_handler(&icd->ctrl_handler, sd->ctrl_handler, NULL);
if (ret < 0)
return ret;
@@ -1997,6 +1999,12 @@ static int soc_camera_video_start(struct soc_camera_device *icd)
return -ENODEV;
video_set_drvdata(icd->vdev, icd);
+ if (icd->vdev->tvnorms == 0) {
+ /* disable the STD API if there are no tvnorms defined */
+ v4l2_disable_ioctl(icd->vdev, VIDIOC_G_STD);
+ v4l2_disable_ioctl(icd->vdev, VIDIOC_S_STD);
+ v4l2_disable_ioctl(icd->vdev, VIDIOC_ENUMSTD);
+ }
ret = video_register_device(icd->vdev, VFL_TYPE_GRABBER, -1);
if (ret < 0) {
dev_err(icd->pdev, "video_register_device failed: %d\n", ret);
--
1.8.5.2
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